Voltage supply circuit for voltage-dependent capacitor diode tun

Details Voltage supply circuit for voltage-dependent capacitor diode tun Voltage supply circuit for voltage-dependent capacitor diode tun

1976-04-30

1977-11-22

Goldberg, Gerald

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

307240, 363140, H02M 3335

Patent

active

040597911

ABSTRACT:
In a voltage supply circuit for voltage-dependent capacitor diode tuning, a d.c. voltage is produced by a.c.-d.c. conversion of an a.c. voltage which is obtained by amplifying an a.c. signal from an oscillator with the aid of a transistor amplifier of the series-feedback type having an amplifying transistor having an amplification factor depending on a variable reactance coupled to an emitter of the amplifying transistor. The variable reactance controls the amount of negative feedback to obtain the corresponding gain of the amplifier. The degree of amplification decreases as the amount of the negative feedback increases, so that the output d.c. voltage will be stable especially in a low voltage region.

REFERENCES:
patent: 3307117 (1967-02-01), Williams
patent: 3398376 (1968-08-01), Olson
patent: 3560833 (1971-02-01), Oishi et al.
patent: 3665342 (1972-05-01), Reed
patent: 3803517 (1974-04-01), Bellocchio
patent: 3958168 (1976-05-01), Grundberg

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